.culturetour-content {
    display: flex;
    width: 76%;
    box-sizing: border-box;
    height: 460px;
    margin: 0 auto;
}

.culturetour-contnet-box {
    flex: 1;
    overflow: hidden;
    transition: .5s;
    margin: 0 2%;
    box-shadow: 0 20px 30px rgba(0,0,0,.1);
    line-height: 0;
}

.culturetour-contnet-box a> img {
    width: 200%;
    height: calc(100% - 7vh);
    object-fit: cover; 
    transition: .5s;
}

.culturetour-contnet-box a> span {
    font-size: 20px;
    font-family: "楷体";
    display: flex;
    justify-content: center;
    align-items: center;
    height: 46px;
    color: #000;
    overflow: hidden;
}

.culturetour-contnet-box:hover { flex: 1 1 50%; }
.culturetour-contnet-box:hover > img {
    width: 100%;
    height: 100%;
}  